Cross-site request forgery (CSRF) vulnerability in WordPress before 4.7.1 allows remote attackers to hijack the authentication of unspecified victims via vectors involving a Flash file upload.
https://wpvulndb.com/vulnerabilities/8717
https://wordpress.org/news/2017/01/wordpress-4-7-1-security-and-maintenance-release/
https://codex.wordpress.org/Version_4.7.1
http://www.securitytracker.com/id/1037591
http://www.securityfocus.com/bid/95399